Arch Linux

king_krab

Member

Registered: 2022-01-01

Posts: 12

[SOLVED] wlan0 interface not found

Hi, I am doing a fresh install of my arch system but am having trouble getting the wifi to work when booted and logged into the main system. It works fine from the archiso, so the first thing I did was boot into the archiso from my usb stick.

pacman -Q

http://ix.io/3MHG

fdisk -l

http://ix.io/3MHC

mount /dev/volgroup0/lv_root /mnt
mount /dev/volgroup0/lv_home /mnt/home
arch-chroot /mnt
pacman -Q

http://ix.io/3MHI

Then I rebooted with grub_uefi to get back to my installation and logged in as root.

ip link

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN mode DEFAULT group default qlen 1000
        link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00

lspci -v | grep Network

0000:900:14.3 Network controller: Intel Corporation Tiger Lake PCH CNVi WiFi (rev 11)
        Subsystem: Intel Corporation Device 4070
        Flags fast devsel, IRQ 16
        Memory at 602529c000 (64-bit, non-prefetchable) [size=16K]
        Capabilities: [c8] Power Management version 3
        Capabilities: [d0] MSI: Enable- Count=1/1 Maskable- 64bit+
        Capabilities: [40] Express Root Complex Integrated Endpoint, MSI 00
        Capabilities: [80] MSI-X: Enable- Count=16 Masked-
        Capabilities: [100] Latency Tolerance Reporting
        Capabilities: [164] Vendor Specific Information: ID=0010 Rev=0 Len=014 <?>
        Kernel modules: iwlwifi

After checking all of these details, I run `iwctl` and `device list`, but no devices are listed. What am I missing here?

Last edited by king_krab (2022-01-18 20:26:39)

Trilby

Inspector Parrot

Registered: 2011-11-29

Posts: 30,456

Website

Re: [SOLVED] wlan0 interface not found

The lspci output lists iwlwifi as a (potential) module for that card, but it doesn't list it as "in use".  Potentially loading it with `modprobe iwlwifi` would work - and if it does we can then try to figure out why the module isn't loading normally at boot up.  Alternatively, checking which modules are in use in the live iso system could be useful.

EDIT: nevermind - I didn't review the package list.  As noted below: install linux-firmware.

Last edited by Trilby (2022-01-18 20:11:18)

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"UNIX is simple and coherent" - Dennis Ritchie; "GNU's Not Unix" - Richard Stallman

progandy

Member

Registered: 2012-05-17

Posts: 5,307

Re: [SOLVED] wlan0 interface not found

First, you are missing linux-firmware (also mentioned in the installation guide)
Then you installed networkmanager, wpa_supplicant as well as iwd. If you want to use iwd directly, make sure to disable networkmanager and wpa_supplicant. Setting up networkmanager to use iwd is also possible and described in the wiki.

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king_krab

Member

Registered: 2022-01-01

Posts: 12

Re: [SOLVED] wlan0 interface not found

Yeah it was the firmware